An
S. aureus
peptide deformylase iron complex composition, a method of isolating the composition, and a method of using the composition to screen for compounds that interact with a peptide deformylase are provided. The composition of the invention retains greater than about 95% of its catalytic deformylase activity after being stored at a protein concentration of greater than about 10 mg/ml in 50% glycerol at −20° C. for six months.
                            一种
金黄色葡萄球菌
提供了一种肽变形酶
铁复合物组合物、一种分离该组合物的方法以及一种使用该组合物筛选与肽变形酶相互作用的化合物的方法。本发明的组合物在 50%
甘油中以大于约 10 mg/ml 的蛋白质浓度在-20°C 下储存 6 个月后,其催化变形酶活性保持率大于约 95%。